Gem stones



FIG. 1 is a perspective view of a gem stone in accordance with one embodiment of my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof, the appearance from the opposite side being a mirror image thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a perspective view of a gem stone in accordance with a second embodiment of my new design;

FIG. 6 is a top view thereof;

FIG. 7 is a side view thereof, the appearance from the opposite side being a mirror image thereof; and,

FIG. 8 is a bottom view thereof. 

The ornamental design for gem stones, as shown and described. 